Dry-material-feeding machine



Feb. 8, 1927.

E E. HARPER 1 Filed Dec. 7, 1925 WC, H l l I /5 4240 ll 43 I I 4/ 5 r F a ,7 4

M JLZZ 24 30 I72 j7' I I I: i M V IINTOR Jhr an ATTORNEY Patented Feb. 8, 1927.

FI-CE.

ELMER E. Hearse, or KANSAS CITY, MISSOURI.

DRY-MATERIAL-FEEDING IVIACHINEQ Application filed beceinber '7, 1925. Serial No: 73,943.

My invention relates to dry material feeding machines and more particularly to those adapted for use in municipal water plants, laundries or elsewhere, for 'delivering meas urcd quantities of lime or other powdered material to a raw water supply, either still or flowing, to soften or otherwise treat the water; the present inventlon constltutmg an improvement on the machine forwhich Letprovements, parts being broken away for;

' through the port 6 and carry a limited quantity of such material thereon, the ar'range-' better illustration.

Fig. 2 is a detail view, partly in section, or the agitator and feeder shaft, illustrating the' i through the port will stack on the table adjustablemounting of the feeder arm.

Referring more in .ings

1 designates frame within which the operating" parts of the machinear'e mounted and preferably consistin of angle iron legs 2 supporting a'material bin platform 3 conangle bars welded or otherwise secured'to the legs '2 and to' which the floor l may be secured by bolts 5.'

Seated on the floor 4 is a bin' or'- tank ,6-

Si sting of permanently which may constitute acylinder having the for a bottom' the floor having a port 6 near one edge of? the platform through which material maybe delivered from the.

bin, as presently described. 7 5 Located above the platform platform 8 also preferably consisting of angle irons 9 securedto the frame legs 2 and supporting a floor 10.

Journalledin bearings 11 and 12 on the platformsBfind Sfis a vertical shaft 13, and

mounted on the bearing 12 is a reducing gear mechanism. indicated by the housing "14, which .mayfcomprise a worm gear (not shown) meshing with a worm indicated by the, housing 15 and which may be fixed to a-shaft- 16 driven from a pulley 17 by a belt 18 on'a pulley 19 fixed to the shaft 20 of a motor 21 mounted on the platform 8.-- 'f material in the bin and to as- .tendsmto a socket'28 (Fig.

opening to screw ma the Fig. 1 is. aperspective new of a dry may terlal feeding machine embodying my mdetail, to the drawcept when forced thereover by the rod 26 8 is a second The shaft '13 extends below the floor 4 of the lower platform and is provided directly above the floor with an aperture 22through sitely from the shaft directly above the floor to serve as an agitator for material con tained within the bin, the rod being 'held in place by a set screw 24 carried" by the shaft. I Below the floor of the. lower platformth'e. shaft 13 'isfprovided with an'aperture 25 through which afeederarm 26 is projected and in which 'the'feeder arm is 'held in" adwhich a rod 23 is projected to extend oppo- 1 justed position by a set screw 27 that ex v the aperture 25 so that the set engage the rod '26 to hold the; rod in place y an extended contact of the 'set' screw with the rod. vThe rod 26 is adapted for projection over a table 29.7011 a'bracket 30 secured to the platform 3 by bolts or the 2) in the shaft:

like'31; the table being so dimensioned and located as to receive material from the bin men't being such that material dropping withoutescapmg over the sides thereof exwhen the latter is mOVedove'r the table,

Within the'frame 1, beneaththe platform 8, isa tank 32 containing raw water for treatment by'the dryinaterialwhich isdelivered to it in measured quantities by the mechanism ust described; I have illustrat ed a tankfas the container foriraw water,

n'ierelyfor purpo'seof explanation, it being apparent water may be employed, or that the material may be delivered 1nto of the invention.

In'us e of machines of this cliaracter' for deliveringpowdered lime or such material,-

the materialhas a -tendency to pack'in its storage b'in, thereby interfering 'with'the de-' that any other container for-still a flowing stream of, the water without departmg from the spirit cross arm 42 extending between legs 2 of the frame 1, the free end of the arm 39 extending over the bin and having a fork'43 straddling the vertical shaft 13. Fixed on the shaft 13within the fork 43 is a cam 44 adapted for alternate engagement with op-- posite arms of the fork to rock the arm 39 and link 38 for the purpose of reciprocating the agitator plate '33 so that the latter will constantly work in the material contained within the bin 6 and prevent or break up the packing of the dry material within the bin, so that it may flow continuously through the bin and be delivered through the port 6.

Assuming the parts to be constructed and assembled as described, operation is as follows The frame is arranged over the raw water supply so that the material dropping onto the table 29 may be forced from the platform into the water. The dry material is filled into the bin 6 part of it dropping through the port onto the table 29, where it stacks but does not escape into the water.

' The'motor is then operated, driving the vertical shaft through the gear reduction; rotation of the shaft reciprocating the agitator 33 and arm 23 to effect a continuous flow of material through the outlet port onto the table. Simultaneously with the operation of the agitators, the arm 26 is moved over the table, scraping measured quantities of powdered material off the table andinto the water, this operation continuing until the powdered material has been exhausted fromthe bin.

It is apparent that with this arrangement, packing of the material within the bin is prevented and a measured delivery of the material vto the water is effected.

Measurement of delivery of material from the table may be regulated by extension of, the arm 26 over the table, and if more material than can be delivered with a single scraper arm 26 is desired, a longer arm may be employed to extend from both sides of the shaft 13, so that a scraping action occurs at each half revolution of the shaft; or additional arms may be provided.

While I have shown and described specific mechanical elements, variations may be made in the specific structure and the machine may be employed for uses other than the softening or other treatment of water if desired.

What I claim and desire to secure by Letters-PLatent is:

1. A machine of the character described, comprising a bin having an opening in the bottom thereof, a stationary shelf-like member mounted exteriorly of said bin and below said opening adapted to receive material from said bin through said opening, a rotatable shaft, and an arm extending laterally outwardly from said shaft and rotating therewith, said armsweeping over said shelf-like member to move material over the edge thereof.

2. A machine of the characterdescribed, comprising a bin having an opening in the bottom thereof, a stationary shelf-like member mounted exteriorly of said bin and below said opening adapted to receive material from said bin through said opening, a rotatable; shaft, and an arm extending outwardly from said shaft and rotating therewith, said arm sweeping over said shelflike member to move material over the edge thereof, saidarm being adjustable relative to said shelf-like member to regulate the amount of material moved oft said shelf: like member with each sweeping movement thereof. i i

3 A machine of the. character described, comprising a bin having an opening in the bottom thereof, a stationary shelf-like member mounted exteriorly of said bin and below said opening adapted toreceive mate rial from said bin through said opening, a,

rotatable shaft, and an arm extending outwardly from said shaft and rotating therewith, said arm sweeping over said shelf-like member to move material over the edge thereof, said arm being adjustable to vary the lateral extension thereof from said shaft.

4. In a machine of the character described, a bin having'an outlet port, feedingmech a nism for delivering measur-ed quantities of material escaping from said port, an agitator within the bin, a shaft rotatable within the bin and cam mechanism operable by said shaft for actuating the, agitator.

5, In a machine of the character described, a bin having an outlet port, a shaft rotatable within and below the bin, a feeder arm on said shaft for delivering measured quanti ties of material escapingthrough said port,

an agitator withinthe bin, and cam mecha nism operable from said shaft for actuating the agitator. l

6. In a machine of the character described, a bin having an outlet port, a shaft rotatable within the bin, means operable by the shaft for feeding material delivered through the outlet port, an agitator plate pivotally mounted within the bin, a rocker arm connected with said plate, and a cam on said shaft in operable relation with said arm.

7. In a machine of the character described, a bin, a shaft rotatable in the bin, an agitator plate pivotally mounted Within the bin, a rocker arm connected with the agitator plate, a cam on said shaft and a fork on said rocker arm engageable by the cam to rock the arm and actuate the agitator plate.

8. In a machine of the character described, a bin having an outlet port, a shaft rotatable in the bin, means on the shaft for feeding material delivered through said port, a vertical agitator plate pivotally mounted Within the bin and having a stud thereon at one side of the pivotal mounting, a rocker arm, a link on the rocker arm having a slot receiving said stud, a cam on the shaft and a fork on the rocker arm embracing the cam for the purpose set forth.

9. In a machine of the character. described, a bin having an outlet port, a stationary ta ble adapted for receiving material from said port, a vertical shaft in said bin extending through the bottom thereof and rotating al- Ways in the same direction, and a pair of said bin and an auxiliary ing member on said arms on said shaft, one immediately above the bottom of said bin and the other movable over said table.

10. In a machine of the character described, a bin having an outlet port,'a table adapted for receiving material from said port, a rotatable shaft in said bin an agitating arm on said shaft rotating therewith in agitator pivoted adjacent the Wall of said bin having a back and forth rocking motion on its pivot above said arm in the bin.

11. In a machine of the character described, a bin having an outlet port, a table adapted for receiving material from said port, a rotatc ble shaft in said bin, an agitatshaft rotating therewith in said bin and an auxiliary agitator pivoted adjacent the wall of said bin actuated by said shaft to pivotally reciprocate Within said bin as said first agitator rotates. V

In testimony whereof I affix my signature.

ELMER n. HARPER. 

